1piececotton fabric, double the size you want the finished piece and add 1 inch.
cotton thread
uncooked rice do not use minute rice. can also use feed corn, flax seed, or cherry pits
Instructions
Cut a rectangle twice the size of your desired heat pack. Mine were 10 x 11 inches. Pink the edges.
With right sides together, fold the fabric in half, forming a thin rectangle. Sew two sides together. Reinforce with an extra seam. Turn the case right side out. It should look like a skinny pillow case.
Fill the bag with with rice, leaving two to three inches empty at the top. Fold the top inside itself, and sew shut. Sew that seam again to reinforce it.
Notes
Tip for success: In my experience, it's good to heat and cool each rice bag and allow it to dry completely prior to gifting. Initial heating can release a little bit of moisture in the bags.To use: Just heat the bag for a minute or two in the microwave and use to warm cold beds or sore tummies. It is recommended to place a mug of water in the microwave alongside the heat packs in order to avoid scorching. Store in the freezer to use as a cold pack.